期刊
JOURNAL OF SYNCHROTRON RADIATION
卷 27, 期 -, 页码 953-958出版社
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S160057752000524X
关键词
X-ray free electron lasers; X-ray absorption spectroscopy; warm dense matter
资金
- Institute for Basic Science [IBS-R012-D1]
- National Research Foundation of Korea [NRF-2015R1A5A1009962, NRF-2019R1A2C2002864, NRF-2019K2A9A2A08000160, NRF-2018R1D1A1B07046676]
- National Research Foundation of Korea [10Z20130012677] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Free-electron laser pulse-based X-ray absorption spectroscopy measurements on warm dense copper are presented. The incident X-ray pulse energies were measured with a detector assembly consisting of a photocathode membrane and microchannel plates, and the transmitted energies were measured simultaneously with a photodiode detector. The precision of the absorption measurements was evaluated. For a warm dense copper foil irradiated by an intense femtosecond laser pulse, the enhanced X-ray absorption below the L-3-edge, followed by the rapid evolution of highly excited Fermi liquid within a picosecond, were successfully measured. This result demonstrates a unique capability to study femtosecond non-equilibrium electron-hole dynamics in extreme states of matter.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据